package cn.bingo.yunsj.ascept;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;
import java.util.Arrays;

/**
 * 统一处理web请求，记录日志
 */
@Aspect
@Component
public class LogAdvice {

    private static final Logger logger= LoggerFactory.getLogger(LogAdvice.class);

    /**
     * 定义拦截规则：拦截com.xjj.web.controller包下面的所有类中，有@RequestMapping注解的方法。
     */
    @Pointcut("execution(* cn.bingo.yunsj.controller..*(..))")
    public void controllerMethodPointcut(){}

    @Before("controllerMethodPointcut()")
    public void doBefore(JoinPoint joinPoint) throws Throwable {
        // 接收到请求，记录请求内容
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();

        // 记录下请求内容
        logger.info("URL : " + request.getRequestURL().toString());
        logger.info("HTTP_METHOD : " + request.getMethod());
        logger.info("IP : " + request.getRemoteAddr());
        logger.info("CLASS_METHOD : " + joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName());
        logger.info("ARGS : " + Arrays.toString(joinPoint.getArgs()));
    }

    @AfterReturning(returning = "ret", pointcut = "controllerMethodPointcut()")
    public void doAfterReturning(Object ret) throws Throwable {

        // 处理完请求，返回内容
        logger.info("RESPONSE : " + ret);
    }
}
